package com.bennu.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.bennu.common.R;
import com.bennu.domain.Employee;
import com.bennu.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    //员工后台登录
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        //页面提交的密码进行MD5加密
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex( password.getBytes() );
        //跟具用户提交的用户名查询数据库
        LambdaQueryWrapper<Employee> lmp=new LambdaQueryWrapper<>();
        lmp.eq( Employee::getUsername,employee.getUsername() );
        Employee emp = employeeService.getOne( lmp );
        //如果没有查询到返回登录失败
        if ( emp==null ){
           return R.error( "登录失败" );
        }
        //密码比对
        if ( !emp.getPassword().equals( password ) ){
            return R.error( "密码错误" );
        }
        //账号禁用状态
        if ( emp.getStatus()==0 ){
            return R.error( "账号已被禁用" );
        }
        //登录成功
        request.getSession().setAttribute( "employee",emp.getId() );
        return R.success( emp );
    }
    //退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理session中保存的员工数据
        request.getSession().removeAttribute( "employee");
        return R.success( "退出成功" );
    }
    //添加员工
    @PostMapping
    public R<String> save(HttpServletRequest request,  @RequestBody Employee employee){
        log.info( "新增员工,员工信息"+employee.toString() );
        //初始密码身份证后六位
        String idNumber = employee.getIdNumber();
        String idn = idNumber.substring( idNumber.length() - 6 );
        //设置默认密码，需要通过MD5加密
        employee.setPassword(DigestUtils.md5DigestAsHex( idn.getBytes() ));
        //获取添加时间
        //创建时间
        //employee.setCreateTime( LocalDateTime.now() );
        //更新时间
        //employee.setUpdateTime( LocalDateTime.now() );
        //获取当前用户的id
        //Long empId = (Long) request.getSession().getAttribute( "employee" );
        //创建人
       // employee.setCreateUser( empId );
        //更新人
        //employee.setUpdateUser( empId );
        employeeService.save( employee );
        return R.success( "新增员工成功" );
    }
    //员工分页查询
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info( "page{},pageSize{},name{}",page,pageSize,name );
        //构造分页构造器
        Page<Employee> pageInfo =new Page(page,pageSize);
        //构造条件
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper<>();
        /**
         * 添加过滤条件
         * StringUtils是apache.common下的
         * 当name不等于空的时候添加
         */
        queryWrapper.like( StringUtils.isNotEmpty( name ),Employee::getName,name );
        //添加排序条件
        queryWrapper.orderByDesc( Employee::getUpdateTime );
        //执行查询
        employeeService.page( pageInfo,queryWrapper );
        return R.success( pageInfo );
        }
        //更具id修改员工状态
    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Employee employee){
        log.info( employee.toString() );
        //Long empId = (Long) request.getSession().getAttribute( "employee" );
        //更新时间
        //employee.setUpdateTime( LocalDateTime.now() );
        //更新人
        //employee.setUpdateUser( empId );
        employeeService.updateById( employee );
        return R.success( "员工信息修改成功" );
    }
    //更具id查询员工信息
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info( "根据id查询员工信息" );
        Employee employee = employeeService.getById( id );
        if ( employee!=null ){
            return R.success( employee );
        }else {
            return R.error( "没有查到员工信息" );
        }
    }
}

